University of Illinois Urbana-Champaign

Fatigue-fracture relation on asphalt concrete mixtures

Na Chiangmai, Chaiwat

Content Files
2_NaChiangmai_Chaiwat.pdf

Permalink

https://hdl.handle.net/2142/16917

Description

Title
Fatigue-fracture relation on asphalt concrete mixtures
Author(s)
Na Chiangmai, Chaiwat
Issue Date
2010-08-20T18:01:48Z
Director of Research (if dissertation) or Advisor (if thesis)
Buttlar, William G.
Department of Study
Civil & Environmental Eng
Discipline
Civil Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Date of Ingest
2010-08-20T18:01:48Z
Keyword(s)
  • fatigue
  • fracture
  • fatigue-fracture correlation
  • asphalt concrete mixtures
Abstract
The purpose of this study is to examine potential relationships between fatigue and fracture parameters obtained from standardized laboratory tests. A flexural bending beam test was used to obtain two fatigue parameters, which include a traditional fatigue criterion based on stress or strain to find number of cycles to failure and a new fatigue criterion based on an energy approach known as the plateau value (PV). Similarly, a disk-shaped compact tension DC(T) fracture test was used to obtain fracture energy parameters, including: fracture strength, pre-peak fracture energy, post-peak fracture energy, and total fracture energy. A factorial of the eight possible correlations was computed to determine the strongest association between the fatigue and fracture parameters for the asphalt mixtures investigated. The study was motivated by the desire to investigate the feasibility of predicting time-consuming fatigue test results with fracture test results, which can be obtained much more rapidly. Based on the results obtained in this study, it was shown that a potentially strong correlation exists between fatigue and fracture mechanisms in asphalt concrete, as characterized by parameters associated with dissipated or consumed energy. As presented through the statistical analysis, the plateau value (PV) and the pre-peak fracture energy (Gf-pre) are the most highly correlated parameters from the fatigue and fracture tests, respectively. This study is based upon limited experimental data and is explored an initial starting point to find relationships between fatigue and fracture mechanisms. Much more experimented and analytical work will be needed to fully understand these relationships and to develop a standardized interconversion scheme.
Graduation Semester
2010-08
Permalink
http://hdl.handle.net/2142/16917
Copyright and License Information
Copyright 2010 Chaiwat Na chiangmai

Owning Collections

Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at Illinois
Dissertations and Theses - Civil and Environmental Engineering